TWI698772B - Light emitting module - Google Patents

Abstract

A light-emitting module includes a flexible substrate, a light-emitting element, and an adjustment unit. The flexible substrate includes a top surface and a bottom surface opposite to the top surface. The light emitting element is arranged on the top surface. The adjustment unit includes a supporting member arranged on the bottom surface and a fixing member spaced apart from the flexible substrate. One end of the supporting member and one end of the flexible substrate are adjustably fixed to the fixing member to make the flexible substrate It is bent into a predetermined shape, and the light emitting element is inclined.

Description

Light-emitting module

The present invention relates to a light-emitting module, in particular to a light-emitting module that can elastically adjust the inclination angle of a light-emitting element to elastically change the light-emitting angle.

The existing wearable device mainly allows a light emitting module and a sensing module to cooperate with each other, that is, the light emitting module is often matched with the sensing module to achieve a predetermined effect by making the light emitting module present a specific light emitting angle. There are several common ways for the group to emit light from a predetermined angle.

Referring to FIG. 1, one of the existing light-emitting modules 1 includes a fixed base 12 having an inclined surface 11, a circuit board 13 arranged on the inclined surface 11, and a circuit board 13 arranged on the circuit board 13 and correspondingly located The light emitting element 14 on the inclined surface 11 allows the light emitting element 14 to emit light at a specific inclined angle through the inclined surface 11. However, the fixed base 12 of the light-emitting module 1 is designed and manufactured in response to a specific tilt angle, so the tilt angle cannot be changed at will. If the tilt angle of the tilted surface 11 is to be changed, the mold design needs to be reopened to make the opening The mold cost is high.

Referring to FIG. 2, another type of the existing light-emitting module 1 includes a circuit board 13, a light-emitting element 14 arranged on the circuit board 13, and a mirror 15 correspondingly arranged on the light path of the light-emitting element 14. The light emitted by the light emitting element 14 is refracted by the reflector 15 to reach a predetermined light output angle. However, the cost of installing the reflector 15 is high, and the light energy of the light emitted by the light emitting element 14 is easily attenuated by the refracted light of the reflector 15, thereby reducing the light extraction efficiency.

Referring to FIG. 3, another existing light emitting module 1 includes a circuit board 13 and a light emitting element 14 disposed on the circuit board 13, wherein the light emitting element 14 has two pins 16 for electrically connecting the circuit board 13 , By bending the pins 16 to the required angle to achieve the predetermined light emitting angle. However, the light emitting element 14 in this manner cannot be arranged on a flexible circuit board, and the packaging cost of the light emitting element 14 is high.

Therefore, the object of the present invention is to provide a light emitting module that can elastically adjust the inclination angle of the light emitting element to elastically change the light emitting angle.

Therefore, the light-emitting module of the present invention includes a flexible substrate, a light-emitting element, and an adjustment unit.

The flexible substrate includes a top surface and a bottom surface opposite to the top surface. The light emitting element is arranged on the top surface. The adjustment unit includes a supporting member arranged on the bottom surface and a fixing member spaced apart from the flexible substrate. One end of the supporting member and one end of the flexible substrate are adjustably fixed to the fixing member to make the flexible substrate It is bent into a predetermined shape, and the light emitting element is inclined.

The effect of the present invention is that by providing the adjusting unit on the bottom surface of the flexible substrate, the supporting member is matched with the fixing member, so that the flexible substrate is bent into a predetermined shape, and the light-emitting member is tilted to make the light-emitting member emit The light is shining in an oblique direction, and one end of the support member and one end of the flexible substrate can be further adjusted and fixed to the fixing member to adjust the inclination angle of the light-emitting member. There is no need to additionally provide a fixed base or a mirror as in the prior art. It can save the printing space to meet the needs of minimizing the module space, and can easily achieve the tilt of the light-emitting element, and the tilt angle can be flexibly changed depending on the application.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers.

4 to 6, an embodiment of the light-emitting module 2 of the present invention includes a flexible substrate 20, a light-emitting element 30 disposed on the flexible substrate 20, and a light-emitting element disposed on the flexible substrate 20 and 30 is located on the opposite side of the adjustment unit 40.

The flexible substrate 20 suitable for this embodiment can be a general flexible printed circuit (FPC), and the light emitting element 30 can be selected from common light emitting diodes (LED) or other light sources depending on the application, and There are no special restrictions. The main feature of this case lies in the structural design of how to make the light emitting element 30 emit light obliquely. Therefore, the selection of related components is not particularly limited, and will not be repeated here.

Specifically, the light-emitting module 2 of this embodiment is located in a part of the integrated circuit board (as shown in FIG. 4), the flexible substrate 20 includes a top surface 21 and a bottom surface 22 opposite to the top surface 21. The light-emitting element 30 is disposed on the top surface 21, and the adjustment unit 4 includes a support member 41 disposed on the bottom surface 22 and a fixing member 42 spaced apart from the flexible substrate 20, wherein one end of the support member 41 is connected to One end of the flexible substrate 20 is jointly fixed to the fixing member 42 in an adjustable manner, so that the flexible substrate is bent into a predetermined shape, so that the light-emitting member 30 is inclined to emit light in an oblique direction.

The light-emitting module 2 is mainly disposed on the bottom surface 22 of the flexible substrate 20 through the supporting member 41, and the flexible substrate 20 can be appropriately supported by the supporting member 41 when the flexible substrate 20 can be bent through related design, thereby It is bent into a specific shape so that the light emitting element 30 emits light obliquely. It should be noted that the shape of the support 41 is not particularly limited, as long as the flexible substrate 20 can be bent to provide support, and the desired inclination angle can be adjusted through the fixing member 42, and the fixing member 42 There is no particular limitation on the aspect, as long as the support 41 can be fixed.

In this embodiment, the supporting member 41 of the adjusting unit 40 is provided on the bottom surface 22 of the flexible substrate 20 in the form of three hard plates spaced apart from each other, and the fixing member 42 is provided for the supporting member. The embodiment of the buckle groove 421 inserted into the flexible substrate 20 together with 41 is taken as an example for description.

In detail, the supporting member 41 includes a first rigid board 411 disposed on the bottom surface 22 and correspondingly located under the light emitting element 30, and a first rigid board 411 disposed on the bottom surface 22 and located on opposite sides of the first rigid board 411. A second hard board 412 and a third hard board 413 are provided. The first hard board 411 is mainly used to support the light-emitting element 30. One end of the second hard board 412 and one end of the flexible substrate 20 can be fixed in the buckle groove 421 in the fixing element 42 together, and the The third hard board 413 is located on the side of the first hard board 411 opposite to the fixing member 42.

Since the hard boards are arranged at intervals, the first hard board 411 and the second hard board 412 jointly define a first bending portion correspondingly located between the light emitting element 30 and the fixing element 42 414. The first rigid board 411 and the third rigid board 413 jointly define a second bending portion 415 located on opposite sides of the light emitting element 30 from the first bending portion 414, and the third rigid board The side of the second bending portion 415 opposite to the plate 413 has a third bending portion 416. The flexible substrate 20 can be bent into a triangular shape through the bending portions, so that the light-emitting element 30 on the first rigid board 411 is inclined to a specific angle.

In more detail, a horizontal line L of the flexible substrate 20 that is parallel and unbent is defined. When the second bent part 415 is moved away from the horizontal line L when the bent part is bent, the first bent part 414 The third bending portion 416 will be bent accordingly, and the flexible substrate 20 between the first bending portion 414 and the second bending portion 415 forms an angle with the horizontal line L to have an included angle θ, And when the second bending portion 415 is farther away from the horizontal line L, the included angle θ is larger, so that the supporting member 41 and the flexible substrate 20 inserted into the buckle groove 421 are less.

In other words, the included angle θ affects the inclination angle of the light-emitting element 30. When the light-emitting angle of the light-emitting element 30 is to be changed, it is only necessary to adjust the end of the second hard board 412 and the part on the flexible substrate 20. The length inserted into the buckle groove 421 is sufficient, so that the inclination angle of the light emitting element 30 can be easily changed.

It should be explained here that in terms of the structure of this embodiment, the second bending portion 415 requires a larger bending space, so that when bending, the first rigid plate 411 and the third The rigid plates 413 will be close to each other, and therefore, a sufficient distance between the first rigid plate 411 and the third rigid plate 413 will be kept in a timely manner for the bending and buffering needs.

In the present invention, the rigid plates are combined with the flexible substrate 20 as a support and define the bending parts, so that after the light emitting element 30 is fixed on the flexible substrate 20, the flexible substrate 20 can be bent and then combined with The fixing member 42 is matched and fixed to achieve the required light-emitting angle and easily achieve the purpose of elastically changing the tilt of the light-emitting member 30. Since the light-emitting module 2 of the present invention does not need to be equipped with a fixed base or a reflector as in the existing light-emitting module, and does not need to have the problem of excessively high height affecting the packaging space, etc., the light-emitting module of the present invention 2 It can simplify the space requirements of modules in response to the minimization of module space requirements, and make the overall design of the terminal more flexible.

To sum up, the light-emitting module of the present invention is configured to support the flexible substrate 20 by arranging the supporting member 41 composed of a plurality of hard plates on the bottom surface 22 of the flexible substrate 20 to allow the flexible substrate 20 to be supported when it is bent. 42 is matched, so that the flexible substrate 20 is bent into a predetermined shape, and the light-emitting element 30 is inclined, so that the light emitted by the light-emitting element 30 emits obliquely, and the buckle groove inserted into the fixing element 42 can be further adjusted The length of the 421 can be used to flexibly change the inclination angle required by the light emitting element 30. There is no need for additional fixed bases or reflectors as in the prior art, which can effectively save the printing space and meet the minimum module space requirements, so it can indeed achieve the cost. The purpose of the invention.

However, the foregoing are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification still belong to Within the scope of the patent of the present invention.

2: Light-emitting module

413: third hard board

20: Flexible substrate

21: top surface

22: Bottom

30: luminous parts

40: adjustment unit

41: Support

411: first hard board

412: second hard board

414: The first bending part

415: Second bending part

416: third bending part

42: fixed parts

421: buckle groove

L: horizontal line

θ: included angle

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Fig. 1 is a schematic side view illustrating an embodiment of a conventional light emitting module; 2 is a schematic side view illustrating another embodiment of the existing light-emitting module; 3 is a schematic side view illustrating another embodiment of the existing light emitting module; 4 is a schematic top view illustrating an embodiment of the light emitting module of the present invention; Figure 5 is a schematic side view, assisting Figure 4 to illustrate the embodiment of the present invention; and Fig. 6 is a schematic side view illustrating an implementation aspect of the embodiment of the present invention.

2: Light-emitting module

20: Flexible substrate

30: luminous parts

411: first hard board

412: second hard board

413: third hard board

414: The first bending part

415: Second bending part

416: third bending part

42: fixed parts

421: buckle groove

L: horizontal line

θ: included angle

Claims (6)

A light-emitting module includes: a flexible substrate including a top surface and a bottom surface opposite to the top surface; a light-emitting element disposed on the top surface; and an adjustment unit including a supporting member disposed on the bottom surface, And a fixing member spaced apart from the flexible substrate, the support member includes a first bending portion correspondingly located between the light-emitting member and the fixing member, one end of the support member and one end of the flexible substrate are adjustable Fixed to the fixing member, the first bending portion makes the flexible substrate bend into a predetermined shape and tilts the light-emitting member. The light-emitting module according to claim 1, wherein the supporting member of the adjustment unit further includes a second bending portion located on opposite sides of the light-emitting member from the first bending portion, and a second bending portion away from the The light-emitting element is a third bending part spaced apart from the two bending parts, and the bending parts can bend the flexible substrate. The light-emitting module according to claim 2, wherein the supporting member includes a first rigid board disposed on the bottom surface corresponding to the light-emitting member, and a first rigid board disposed on the bottom surface and located on one side of the first rigid board And can be fixed to the second rigid plate of the fixing member, and a third rigid plate arranged on the bottom surface and located on the side of the first rigid plate opposite to the fixing member, the first rigid plate and the second rigid plate The board jointly defines the first bending portion, the first rigid board and the third rigid board jointly define the second bending portion, and the third bending position is opposite to the third rigid board and the second bending One side of the fold. The light-emitting module according to claim 2, wherein a horizontal line parallel to the flexible substrate that is not bent is defined, and when the bent portions are bent, the second When the bending part is far away from the horizontal line, the part between the first bending part and the second bending part is angled with the horizontal line to have an included angle. The light-emitting module according to claim 4, wherein the fixing member has a buckle groove, and one end of the support member and one end of the flexible substrate are adjustably inserted into the buckle groove. The light-emitting module according to claim 5, wherein when the second bending portion is farther away from the horizontal line, the included angle is larger and the supporting member and the flexible substrate portion inserted into the buckle groove are fewer.

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